Optimum Design of Vehicle Powertrain Mounting System

자동차용 파워트레인 마운팅 시스템의 최적설계

  • 김진훈 (동아대학교 신소형재가공청정공정개발연구센터) ;
  • 이수종 (아트라스콥코 에스핀엔지(주)) ;
  • 이우현 ((주)대흥알앤티 기술연구소) ;
  • 김정렬 (한국해양대학교 기관시스템공학부)
  • Received : 2010.04.08
  • Accepted : 2010.05.20
  • Published : 2010.06.30

Abstract

Technology of vehicle industry has been developing and it is required a better vehicle performance than before. Therefore, the consumers are asking not only an economic efficiency, functionality, polished design, ride comfort and silence but also a driving stability. The ride comfort, silence and driving stability are influenced by the size of vehicle and various facilities. But the principal factor is a room noise and vibration sensed by a driver and passenger. Thus, the NVH of vehicle has been raised and used as a principal factor for evaluation of vehicle performance. The primary objective of this study is an optimized design of powertrain mounting system. To optimized design was applied MSC.Nastran optimization modules. Results of dynamic analysis for powertrain mounting system was investigated. By theses results, design variables was applied 12 dynamic spring constant. And the weighting factor according to translational displacement and rotational displacement applied 3 cases. The objective function was applied to minimize displacement of powertrain. And the design variable constraint was imposed dynamic spring constant ratio. The constraint of design variable for objective function was imposed bounce displacement for powertrain.

Keywords

References

  1. 김진훈 외 3명, 2008, "직렬 4기통 엔진의 가진력 해석", 한국동력기계공학회지, 제12권, 제1호, pp. 41-46.
  2. J. H. Kim et al., 2007, "Analysis of Engine Exciting Forces for In-Line", ISMT 2007 Proceedings, pp. 211-216.
  3. 김진훈 외 3명, 2008, "비선형 특성을 적용한 파워트레인 마운팅 시스템의 마운트 전달력 해석", 한국동력기계공학회지, 제12권, 제2호, pp. 23-28.
  4. 김진훈 외 3명, 2008, "마운트의 장착위치에 따른 파워트레인 마운팅 시스템의 동적해석", 한국동력기계공학회 춘계학술대회 논문집, pp. 196-201.
  5. "Design sensitivity and optimization user's guide", MSC.Software.
  6. Manfred Hofmann, 2001, "Antivibration Systems", Trelleborg Automotive Technical Center. pp. 53-55.
  7. Basem Alzahabi, Arnaldo Mazzei, Logesh Kumar Natarajan, "Investigation of powertrain rigid body modes".
  8. Manfred Wamsler, Ted Rose, 1998, "Advanced mode shape identification method for automotive application via modal kinetic energy plots assisted by numerous printed outputs", MSC Americas Users' Conference.